"Sun, 15 Sep 2024 14:14:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
14:14:35
General datetime
2024-09-15 14:14:35Z
For Database
2024-09-15 14:14:35
For HTTP1.1
Sun, 15 Sep 2024 14:14:35 GMT